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1. |
When the weight of a ball inside the ball mill is just balanced by the centrifugal force, |
A. | the ball abandons its circular path for a parabolic path. |
B. | the ball abandans its parabolic path for a circular path. |
C. | the ball continues to move on a circular path. |
D. | the ball continues to move on a parabolic path. |
Answer» B. the ball abandans its parabolic path for a circular path. | |